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<blockquote data-quote="squeak9798" data-source="post: 1406702" data-attributes="member: 555320">Depends on who you talk to, and the gauge of wire you are using.I&#039;ve seen valid tests that arrive at the conclusion that an average vehicle chassis has a resistance equivalent to 4ga wire...which would mean if your ground wire is larger than 4ga, you would be better off running the ground wire back directly to the battery (regardless of where the battery is located).Then I&#039;ve seen other valid tests which show that the average vehicle&#039;s chassis has a resistance equivalent to that of 2/0ga, which would mean running the ground wire directly to the negative battery terminal (regardless of where said battery is located) would only be beneficial if using wire larger than 2/0ga.As to the original question....pretty much as JimJ (I&#039;ll never get used to your new name Jack //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif ) and KaeZoo said....there&#039;s no real set limit, you just want to minimize the amount of resistance.&nbsp; In which case, it&#039;s typically thought that the chassis has less resistance than most wire, and hence you want the wire (the most resistive part of the path) to be as short as possible.</blockquote>

[QUOTE="squeak9798, post: 1406702, member: 555320"] Depends on who you talk to, and the gauge of wire you are using. I've seen valid tests that arrive at the conclusion that an average vehicle chassis has a resistance equivalent to 4ga wire...which would mean if your ground wire is larger than 4ga, you would be better off running the ground wire back directly to the battery (regardless of where the battery is located). Then I've seen other valid tests which show that the average vehicle's chassis has a resistance equivalent to that of 2/0ga, which would mean running the ground wire directly to the negative battery terminal (regardless of where said battery is located) would only be beneficial if using wire larger than 2/0ga. As to the original question....pretty much as JimJ (I'll never get used to your new name Jack [IMG]//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif[/IMG] ) and KaeZoo said....there's no real set limit, you just want to minimize the amount of resistance. In which case, it's typically thought that the chassis has less resistance than most wire, and hence you want the wire (the most resistive part of the path) to be as short as possible. [/QUOTE]

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